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| Material: | Carbon Steel | OD: | 114.3-660 |
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| THK: | 2.5-20MM | Length: | 3-18M |
| Color: | Black | Purpose: | Linepipe |
| Standard: | API | Application: | Pipeline |
| High Light: | X70M High Frequency Welded Pipe,API 5L High Frequency Welded Pipe,X70M Gas Transmission Welded Pipe |
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API 5L X70M High Frequency Welded Pipe For Gas Transmission
High frequency welding (HFW) steel pipe is that ERW pipe produced with a welding current frequency equal to or greater than 70 kHZ. Through high-frequency current welding resistance, the heat generated in the contact objects, so the objected surface are heated to the plastic state, then with or without forging to achieve a combination of steels. HFW is a solid resistance heat energy. The high frequency current pass through the metal conductor, will produce two peculiar effects, skin effect and proximity effect. And HFW process is to use the skin effect to concentrated on steel object surface, use proximity effects to control the position and the power of the high-frequency electric current flow path. Since the speed is very high, the contacted plate edge could be heated and melted in shore time, then extruded through docking process.
HFW steel pipe used for transporting gas and liquid objects such as oil and gas, could meet the low and high pressure requirement. In recent years, with the development of ERW technology, more and more ERW steel pipe used in the oil and gas fields, automobile industry and so on.
| Usage: | Used for high pressure liquid transportation |
| ERW : | Electric Resistance Welded pipe |
| HFI: | High Frequency Induction weld pipe |
| EFW: | Electric Fusion Welded Pipe |
| Standard: | API 5L |
| Certificate: | ISO 9001, ISO 14001, OHSAS 18001, API 5L PSL1&PSL2 |
| Out Diameter: | 114.3mm - 660.4mm (4"-26") |
| Wall Thk: | 4mm-22mm |
| Length: | 3M-18M |
| Steel Grade: | API 5L PSL1 & PSL2: GR B, X42, X46, X56, X60, X65, X70 ASTM A53: GR.A, GR.B |
| Surface: | bare pipe |
| Tests: | Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test. |
| MTC: |
EN 10204/3.1B, EN 10204/3.2 (with Third Party Inspection) |
Contact Person: Sing Zhuan
Tel: +8615130808690
